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40
4. Control Panel and LCD Operations
4.3 Alarm List
Table 4.12 provides the complete list of UPS alarm messages.
Messages in the LCD Explanation
Fault! Bus Over Voltage DC bus voltage is too high.
Fault! Bus Under Voltage DC bus voltage is too low.
Fault! Bus Voltage Unbalance DC bus voltage is not balanced.
Fault! Bus Short DC bus is short.
Fault! Bus Soft Start Time Out The rectifiers cannot start due to low DC bus voltage within specified duration.
Fault! Inverter Soft Start Time Out Inverter bus voltage cannot reach desired voltage within specified duration.
Fault! Inverter Voltage Over Inverter Voltage is over Peak Value.
Fault! Inverter Voltage High Inverter Voltage is too high.
Fault! Inverter Voltage Low Inverter Voltage is too low.
Fault! R Inverter Voltage Short R phase inverter Output is short-circuited.
Fault! S Inverter Voltage Short S phase inverter Output is short-circuited.
Fault! T Inverter Voltage Short T phase inverter Output is short-circuited.
Fault! RS Inverter Voltage Short R-S inverter Output is short-circuited.
Fault! ST Inverter Voltage Short S-T inverter Output is short-circuited.
Fault! TR Inverter Voltage Short T-R inverter Output is short-circuited.
Fault! Inverter R Negative Power R phase inverter Output Negative Power over range.
Fault! Inverter S Negative Power S phase inverter Output Negative Power over range.
Fault! Inverter T Negative Power T phase inverter Output Negative Power over range.
Fault! Over Load Fault Heavy overload causes UPS fault.
Fault! Battery Fault Batteries reversed.
Fault! Over Temperature Make sure adequate space is allowed for air ventilation and that the fan is working.
Fault! CAN Fault CAN communication fault.
Fault! TRIG0 Fault Synchronised trigger signal fault.
Fault! Relay Fault Inverter relay fault.
Fault! Line SCR Fail Line SCR short circuit fault.
Fault! EEPROM Fault EEPROM operation error.
Fault! Parallel Cable Loose Fault As stated.
Fault! DSP MCU Stop Communicate As stated.
Fault! Bypass Temperature Fault As stated
Fault! Bypass SCR Fault As stated.
Line Fail Utility lost or abnormal.
Line Restore Utility recovered to normal.
Warning! EPO Active Check the EPO connector.
Warning! Over Load Fail The load devices are demanding more power than the UPS can supply. Line Mode will transfer to
Bypass Mode.
Warning! Communicate CAN Fail CAN communication error.
Warning! Over Load When in Line Mode, the load devices are demanding more power than the UPS can supply.
Warning! Battery Open Battery not connected.
Warning! Battery voltage High Battery voltage is too high.
Warning! Turn On Abnormal As stated.
Warning! Charge Fail As stated.
Warning! EEPROM Fail EEPROM operation error.
Warning! Fan Lock As stated.
Warning! Line Phase Error As stated.
Warning! Bypass Phase Error As stated.
Warning! N Loss Neutral loss.
Warning! Internal Initial Fail As stated.
Warning! Comm Syn Signal Fail Communicate Synchronization Signal Fail.
Warning! Comm. TRIG0 Fail Communicate Trigger signal fault.
Warning! Power Stage loss Power stage is not detected.
Warning! Parallel Sys Config. Wrong Parallel System Configure error.
Warning! Maintenance Bypass Enter maintenance.
Warning! Battery Age Alert Battery Life expiration.
Warning! Parallel UPS Cable Loose As stated.
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